article: Before I started school, people felt that I was not going to be successful.At the age of four I started speech lessons because I could not speak well enough for anyone to understand me.
  The first grade was a struggle  .I had difficulty speaking, I also couldn't learn to read.The second grade was not much better.I still struggled with the inability to read.In the third grade a new school was built. It was near my home. I went there with my parents and helped to get the school ready so that we could move to the new one. However, things didn't get better for the next two years.
  It was in the fifth grade.Mrs.Wakefield was my teacher, and she was a good teacher.She did not make me feel unconfident. Instead, she did her best to let me know that I could be whatever I wanted to be.And that is just what I did.
  For the past 22 years, I have been a fifth grade teacher.Because of Mrs.Wakefield's influence on my life, I am now encouraging students who have had difficulties in their lives to believe that they can deal with any difficulty successfully and become someone.I have won many awards  up to now, such as Teacher of the Year.I think I should thank my fifth grade teacher. She believed in me and helped me to be all that I could be.
question: We can know that the writer   _  .
options: has taught speech lessons thinks teaching is a good job is a very successful teacher now works in the same school with Mrs. Wakefield